Legal Definition
A counterclaim is a claim brought by one party in a lawsuit against the other party, typically filed within the same legal action. It asserts a claim for relief against the defendant, often serving as an alternative or supplementary claim to the plaintiff's original claim.
Plain-English Translation
Imagine you are suing someone for something, but you also bring a separate claim against them in the same lawsuit. This is called a counterclaim. It means you are asking the court to award money or specific rights from the defendant as part of your original suit.